package com.deep.stream.service;

/**
 * @author dell
 * @create 2022/7/27 16:35
 */

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.stream.annotation.EnableBinding;
import org.springframework.cloud.stream.messaging.Source;
import org.springframework.integration.support.MessageBuilder;
import org.springframework.messaging.MessageChannel;

import javax.annotation.Resource;
import java.util.UUID;

@EnableBinding(Source.class)    // 定义消息的推送管道（Source是spring的）
public class IMessageProviderImpl implements IMessageProvider {

    @Autowired
    private MessageChannel output;  // 消息发送管道

    @Override
    public String send() {
        String serial = UUID.randomUUID().toString();
        // MessageBuilder是spring的integration.support.MessageBuilder
        output.send(MessageBuilder.withPayload(serial).build());
        System.out.println("*******serial: " + serial);
        return "done";
    }
}